Choosing the right paint additive can help prevent mold and mildew growth while improving traction and durability on coated surfaces. Below are five vetted options that work with water-based, oil-based, or epoxy coatings, including products designed specifically to defend against mold and mildew and others that improve slip resistance. Use this guide to compare drivability, application, and long-term performance across common indoor and outdoor projects.
| Product | Brand | Key Benefit | Approx. Volume |
|---|---|---|---|
| Paint-Guard Mold and Mildew Defense Paint Additive | BTG PRODUCTS | Mold and mildew defense; easy to mix into water-based paints | 1 gallon treatment |
| MICROBAN 1.5 oz. Fungicidal Paint Additive | MICROBAN | Mildew-resistant coating when mixed into paint or stains | Per-pack 1.5 oz treats 1 gallon |
| Rust-Oleum Anti-Skid Additive, 3.4 oz | Rust-Oleum | Aluminum oxide-based anti-skid for various coating bases | 1 package treats up to 1 gallon |
| Rust-Oleum Anti-Skid Additive, 3.4 oz, 2 Pack | Rust-Oleum | Two-pack option for larger projects; same anti-skid performance | Each package treats up to 1 gallon |
| Concrete Anti-Skid Additive with Aluminum Oxide – 8 oz | GOODTAKE | Durable non-slip grip for concrete and various coatings | 8 oz |
Paint-Guard Mold and Mildew Defense Paint Additive
The Paint-Guard Mold and Mildew Defense additive is designed to protect painted surfaces from mold and mildew growth. It is formulated for easy use by simply pouring into water-based paints. The product claims long-lasting protection, helping to extend the life of the coating and prevent surface degradation caused by moisture and microbial activity. Suitable for interior walls, bathrooms, basements, and other moisture-prone areas where mildew resistance is a priority.
- Mold and mildew defense for painted surfaces
- Easy to mix into water-based paints
- Promises long-lasting protection against moisture-induced degradation
MICROBAN 1.5 oz. Fungicidal Paint Additive
MICROBAN’s fungicidal paint additive is designed to resist mold and mildew on dry paint. The per-pack information indicates that 1.5 ounces treats 1 gallon of paint, and the formula mixes into both oil-based and latex paints or stains. The product emphasizes ease of blending with various coatings and provides a clear liquid that won’t separate, helping maintain consistent protection across the painted surface.
- Resists mold and mildew on dry paint
- Treats 1 gallon per 1.5 oz sachet
- Compatible with oil-based and latex paints
Rust-Oleum Anti-Skid Additive, 3.4 oz
Rust-Oleum’s anti-skid additive uses an aluminum oxide-based formula that can be added to epoxy, latex, or oil-based paints or stains. It is intended to provide a durable, slip-resistant surface for concrete, wood, metal, or fiberglass. A single 3.4 oz package treats up to one gallon of coating, making it suitable for small to medium projects where traction safety is a priority.
- Aluminum oxide-based anti-skid formula
- Compatible with multiple coating bases
- Treats up to 1 gallon per package
Rust-Oleum Anti-Skid Additive, 3.4 oz, 2 Pack
This two-pack option mirrors the single-pack product’s anti-skid properties, allowing larger projects to launch with consistent traction across surfaces. The additive remains compatible with epoxy, latex, and oil-based coatings, and like the single-pack version, each pack treats up to one gallon of coating. It’s well-suited for steps, driveways, and other high-traffic areas where slipping is a concern.
- Two-pack option for bigger jobs
- Aluminum oxide anti-skid in each pack
- Works with various coating types
Concrete Anti-Skid Additive with Aluminum Oxide – 8 oz
GOODTAKE’s 8 oz concrete anti-skid additive brings aluminum oxide into concrete and other coatings to yield durable traction for floors, steps, and driveways. It’s designed to be easy to mix and apply, and claims compatibility with most coatings, making it a versatile option for homeowners and professionals seeking dependable non-slip performance in outdoor and high-traffic environments.
- Aluminum oxide for durable traction
- Compatible with most coatings
- Easy to mix and apply for concrete and floors
Homax Anti-Skid Paint Additive, 16 oz
Homax’s Tread-Tex Anti-Skid Paint Additive is a straightforward option for adding slip resistance to painted surfaces. The 16 oz size is designed for mid-to-large projects and can be mixed into most paints or coatings to provide a textured, non-slip finish. It’s commonly used on interior floors, stairs, and outdoor decks where moisture and foot traffic are concerns.
- Anti-skid texture for painted surfaces
- 16 oz size suitable for larger projects
- Mixes into most paints or coatings
Buying Guide: Key Purchase Considerations
When selecting an anti mold or anti-slip paint additive, consider the following factors to ensure you choose the best option for your project:
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<li mold and mildew protection vs. traction needs: Mold/mildew-focused additives defend surfaces from microbial growth, while anti-skid additives improve safety by increasing surface grip. Some products offer both, but most specialize in one primary benefit.
<li coating compatibility: Check whether the additive works with water-based, oil-based, or epoxy coatings. Multipurpose additives are convenient, but not all are guaranteed safe or effective with every coating type.
<li surface application: Indoor moisture-prone areas (bathrooms, basements) benefit from mold/mildew defenses, while outdoor areas (steps, driveways) emphasize traction. Consider where the coating will be applied and traffic levels.
<li quantity and coverage: Look at the expected coverage per package and the number of gallons treated. For larger projects, a two-pack option or bigger containers can simplify planning and pricing.
<li application method and tools: Some additives require no special tools, while others may need mixing with specific ratios. Ensure you have compatible mixing equipment and clear instructions.
<li longevity and maintenance: Mold/mildew inhibitors should endure moisture exposure and cleaning cycles. Traction additives should maintain grip under weathering and wear.
<li safety and surface preparation: Follow manufacturer guidelines for surface prep, ventilation, and protection of surrounding areas. Some additives may alter the color or texture of the coating slightly.
In sum, select additives based on whether your priority is mold and mildew prevention or slip resistance. For projects dealing with moisture-rich environments, prioritize mold/mildew defense products such as Paint-Guard and MICROBAN. For high-traffic surfaces where slip resistance is essential, choose anti-skid additives from Rust-Oleum or GOODTAKE, ensuring coating compatibility and appropriate coverage for your project size.